The truth is, we’re all pretty different when it comes to our nutrition and what our bodies need to optimize results. Whether you are looking to lose fat, put on muscle mass, or recomp, there’s much more than one factor to consider. The best approach for you requires taking a look at your current fitness level, age, height, weight, gender, workout routine, past diet, genetics, and personal taste preferences.

The bottom line is that there is no one-size-fits-all approach. And what worked for your friend or your friend’s friend won’t always work for you. So, where do you go from here?

Here are five nutrition calculators designed by registered dietitians and backed by science to help you fine-tune your nutrition goals and get matched with the perfect meal plan.

Man weighing himself on a professional scale for a marathon and his new diet plan

10 Keys to Starting a New Diet

These tips will help you maintain your diet and keep you on the right path.

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